Add videos to immersion?
Anyone want to translate the audio track of a video? I know Youtube has beta captions that are what their algorithms can extract from a video. Video immersions would be interesting, engaging, and should also make a lot of content available to more audiences.
You could approach independent content-providers who do not have the budgets for translators (nor the reputations to risk on low-cost Duolingo translations). I imagine a lot of educational content producers would be interested, too. Maybe recorded live theater.